Comment by monster_truck

Thanks :) The hardest part of making this was not spending all of my time playing.

F1 or ? will show the shortcut keys.

There are little +/- buttons you can click on (bottom of "Paws" button) to do this, right clicking will reset the speed.

There's also a benchmark mode, lots of other flags. This URL will run the game endlessly, spawning 10 lemmings at a time, automatically adjusting the speed to run as fast as it can, reducing speed when frames take too long. I chose a level that ensures they splat so that anyone who clicks on this and forgets about it only crashes the tab and not their browser https://doublemover.github.io/LemmingsJS-MIDI/?version=1&dif...